Nathan Hydration Pack Vapor Airess 3.0 - 7L Trailrun Vest

Nathan Hydration Pack Vapor Airess 3.0 - 7L The Vapor Air and Airess 3.0 7L vests are the next generation... Nathan Hydration Pack Vapor Airess 3.0 - 7L The Vapor Air and Airess 3.0 7L vests are the next generation in the award-winning VaporAir/Airess series. Using new materials, hardware and pocket design, these new Vapor vests are our best version yet. Notable updates include newly exposed air mesh shoulder straps, colorful bungee cords on the front shoulders and rear center panel for additional storage options, low-profile hardware on the sternum straps and a new zippered rear pocket that's easier to access when you're running.